导读 在工作过程中经常遇到linux的操作系统网络不正常的情况,以前没有注意到,今天查看系统日志发现原来是网络驱动的问题。索性直接更新系统,更新网卡
问题:linux系统经常出现断网的情况,重启之后系统恢复正常

在断网时候通过ipmi查看系统,发现系统正常运行,只是不能连接网络。进入系统日志找来找去,发下一下报错:

May 28 13:55:00 localhost kernel: ------------[ cut here ]------------
May 28 13:55:00 localhost kernel: WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x26b
/0x280() (Not tainted)
May 28 13:55:00 localhost kernel: Hardware name: X9SCL/X9SCM
May 28 13:55:00 localhost kernel: NETDEV WATCHDOG: eth0 (e1000e): transmit queue 0 timed out
May 28 13:55:00 localhost kernel: Modules linked in: autofs4 cpufreq_ondemand acpi_cpufreq f
req_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_
filter ip6_tables ipv6 iTCO_wdt iTCO_vendor_support microcode serio_raw e1000e ptp pps_core 
sg i2c_i801 i2c_core lpc_ich mfd_core shpchp ext4 jbd2 mbcache sd_mod crc_t10dif ahci video 
output dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]
May 28 13:55:00 localhost kernel: Pid: 20176, comm: 64a Not tainted 2.6.32-431.el6.x86_64 #1
May 28 13:55:00 localhost kernel: Call Trace:
May 28 13:55:00 localhost kernel:   [] ? warn_slowpath_common+0x87/0xc0
May 28 13:55:00 localhost kernel: [] ? warn_slowpath_fmt+0x46/0x50
May 28 13:55:00 localhost kernel: [] ? dev_watchdog+0x26b/0x280
May 28 13:55:00 localhost kernel: [] ? ghes_poll_func+0x0/0x30
May 28 13:55:00 localhost kernel: [] ? add_timer+0x18/0x30
May 28 13:55:00 localhost kernel: [] ? dev_watchdog+0x0/0x280
May 28 13:55:00 localhost kernel: [] ? run_timer_softirq+0x197/0x340
May 28 13:55:00 localhost kernel: [] ? tick_dev_program_event+0x65/0xc0
May 28 13:55:00 localhost kernel: [] ? __do_softirq+0xc1/0x1e0
May 28 13:55:00 localhost kernel: [] ? tick_program_event+0x2a/0x30
May 28 13:55:00 localhost kernel: [] ? call_softirq+0x1c/0x30
May 28 13:55:00 localhost kernel: [] ? do_softirq+0x65/0xa0
May 28 13:55:00 localhost kernel: [] ? irq_exit+0x85/0x90
May 28 13:55:00 localhost kernel: [] ? smp_apic_timer_interrupt+0x4a/0x60
May 28 13:55:00 localhost kernel: [] ? apic_timer_interrupt+0x13/0x20
May 28 13:55:00 localhost kernel:   [] ? sk_alloc+0x7a/0x140
May 28 13:55:00 localhost kernel: [] ? sk_alloc+0x6f/0x140
May 28 13:55:00 localhost kernel: [] ? inet_create+0x19e/0x390
May 28 13:55:00 localhost kernel: [] ? new_inode+0x72/0xb0
May 28 13:55:00 localhost kernel: [] ? __sock_create+0x117/0x240
May 28 13:55:00 localhost kernel: [] ? sock_create+0x30/0x40
May 28 13:55:00 localhost kernel: [] ? sys_socket+0x3c/0x80
May 28 13:55:00 localhost kernel: [] ? system_call_fastpath+0x16/0x1b
May 28 13:55:00 localhost kernel: ---[ end trace 6a44a642566ebafb ]---
May 28 13:55:00 localhost kernel: e1000e 0000:02:00.0: eth0: Reset adapter unexpectedly
May 28 13:55:00 localhost kernel: e1000e 0000:02:00.0: eth0: Timesync Tx Control register not set as expected

通过网上搜素,发现是网卡驱动出现了问题,网上的解决方法是更新网卡驱动。由于没有亲自测试网卡驱动,本次就通过“yum -y update”更新系统,更新网卡驱动

查看系统版本
[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost ~]# cat /proc/version
Linux version 2.6.32-431.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 03:15:09 UTC 2013
[root@localhost ~]#  lsb_release -a
LSB Version:	:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID:	CentOS
Description:	CentOS release 6.5 (Final)
Release:	6.5
Codename:	Final
查看网卡驱动
[root@localhost ~]# modinfo bnx2
filename:       /lib/modules/2.6.32-431.el6.x86_64/kernel/drivers/net/bnx2.ko
firmware:       bnx2/bnx2-rv2p-09ax-6.0.17.fw
firmware:       bnx2/bnx2-rv2p-09-6.0.17.fw
firmware:       bnx2/bnx2-mips-09-6.2.1b.fw
firmware:       bnx2/bnx2-rv2p-06-6.0.15.fw
firmware:       bnx2/bnx2-mips-06-6.2.3.fw
version:        2.2.3
license:        GPL
description:    Broadcom NetXtreme II BCM5706/5708/5709/5716 Driver
author:         Michael Chan <mchan@broadcom.com>
srcversion:     17D4A614D14049C677860EC
alias:          pci:v000014E4d0000163Csv*sd*bc*sc*i*
alias:          pci:v000014E4d0000163Bsv*sd*bc*sc*i*
alias:          pci:v000014E4d0000163Asv*sd*bc*sc*i*
alias:          pci:v000014E4d00001639sv*sd*bc*sc*i*
alias:          pci:v000014E4d000016ACsv*sd*bc*sc*i*
alias:          pci:v000014E4d000016AAsv*sd*bc*sc*i*
alias:          pci:v000014E4d000016AAsv0000103Csd00003102bc*sc*i*
alias:          pci:v000014E4d0000164Csv*sd*bc*sc*i*
alias:          pci:v000014E4d0000164Asv*sd*bc*sc*i*
alias:          pci:v000014E4d0000164Asv0000103Csd00003106bc*sc*i*
alias:          pci:v000014E4d0000164Asv0000103Csd00003101bc*sc*i*
depends:        
vermagic:       2.6.32-431.el6.x86_64 SMP mod_unload modversions 
parm:           disable_msi:Disable Message Signaled Interrupt (MSI) (int)
yum update 系统更新
yum -y update

yum update

reboot
查看系统版本查看网卡驱动
[root@localhost ~]# modinfo bnx2
filename:       /lib/modules/2.6.32-642.el6.x86_64/kernel/drivers/net/bnx2.ko
firmware:       bnx2/bnx2-rv2p-09ax-6.0.17.fw
firmware:       bnx2/bnx2-rv2p-09-6.0.17.fw
firmware:       bnx2/bnx2-mips-09-6.2.1b.fw
firmware:       bnx2/bnx2-rv2p-06-6.0.15.fw
firmware:       bnx2/bnx2-mips-06-6.2.3.fw
version:        2.2.6
license:        GPL
description:    QLogic BCM5706/5708/5709/5716 Driver
author:         Michael Chan <mchan@broadcom.com>
srcversion:     16BA5FA9F22B085C53076EC
alias:          pci:v000014E4d0000163Csv*sd*bc*sc*i*
alias:          pci:v000014E4d0000163Bsv*sd*bc*sc*i*
alias:          pci:v000014E4d0000163Asv*sd*bc*sc*i*
alias:          pci:v000014E4d00001639sv*sd*bc*sc*i*
alias:          pci:v000014E4d000016ACsv*sd*bc*sc*i*
alias:          pci:v000014E4d000016AAsv*sd*bc*sc*i*
alias:          pci:v000014E4d000016AAsv0000103Csd00003102bc*sc*i*
alias:          pci:v000014E4d0000164Csv*sd*bc*sc*i*
alias:          pci:v000014E4d0000164Asv*sd*bc*sc*i*
alias:          pci:v000014E4d0000164Asv0000103Csd00003106bc*sc*i*
alias:          pci:v000014E4d0000164Asv0000103Csd00003101bc*sc*i*
depends:        
vermagic:       2.6.32-642.el6.x86_64 SMP mod_unload modversions 
parm:           disable_msi:Disable Message Signaled Interrupt (MSI) (int)

系统更新了,网卡也进行了更新,下面就是看系统网卡是否正常

本文原创地址:http://www.linuxprobe.com/centos6-5-yumupdate-e1000.html作者:陶武杰,审核员:逄增宝